[KongchangAI]
Unverified80% confidenceSolutionTime unknown

备孕至孕期营养补充方案模板:孕前3个月开始补400μg叶酸→孕早期继续单独叶酸→孕中晚期可切换含铁、钙、DHA的孕妇复合维生素→高危人群(基因变异/病史)先咨询医生调整叶酸形式与剂量

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